Current-conductor.



J. REGENSTREIF.

CURRENT CONDUCTOR.

APPLICATION FILED JUNE 2, 1910.

Patented Jan. 31, 1911.

Inventor: Jakob Regens reif,

HIS JTttorneg.

Witnesses g subject of the Emperor of Austria-Hungary, I

UNITED STATES PatrENr OFFICE.

JAKOlB REGENSTREIF, 0F BERLIN, GERMANY, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

CURRENT-CONDUCTOR.

To all whom it may concern:

Specification of Letters Patent.

Application filed June 2 1910. Serial No. 564,648;

Patented Jan. 31, 1911.

my invention this difficulty is obviated and Be it known that I, JAKOB RnonNs'rnnIF, a a support of greater strength and resilienc residing at Berlin, Germany, have invented certain new and useful Improvements in. Current-Conductors, of whlch the following is a specification.

My invention relates to the support of current conductors, as for example, a filamentof an incandescent lamp or the wire of the resister element of a ballast resistance. Conductors in devices of this kind are commonly supported upon a framework, or spider which is in turn fastened to the base of the container.

1 My invention relates to the support, or. connection, of the framework to the base of the container.

The novel features of my invention are pointed out more particularly in the appended claims. y

In the accompanying drawings Fi ire 1 illustrates in perspectlve an incan escent lamp provided with a filament spider fastened to the stem of the lamp in accordance with my invention; Fig. 2 is a detail view of the support shown in Fig. 1 as seen when rotated through an angle of 90 ;.I igs. 3 and 4 are detail views of modifications.

-I will describe my invention with particular reference to an incandescent lamp for the sake of illustration, but wish it to be understood that it is not limited to a lam structure but may be used in connection wit ballast resistance, or other mounted conducor spider 1, provided with supports 2, carrying the filament, has been commonly attached directly to the flattened portion of the stem 3. of the lamp. Into this flattened portion, the leadin -in wires are likewisev commonly sealed. he weightof the spider filament, which in large units may be considerable is thus brought to bear directly upon the sensitive part of the lamp stem. Shocks 01' strains occurring during the transportation of the lamp are apt to start leaks around the leading-in wires and thus cause the deterioration, of the vacuum of the lamp, if, indeed, the connection between the spider and the stem is not broken. According to 1s produced by surrounding the stem 3 wit base of the s ider 1 by means of strips 6 extending t erefrom. The collar 5 is firmly drawn around the stem 3 by means of small bolts 7, as illustrated. The connecting strips 6 are fastened to the base 8 of the spider which consists of a suitable in- '55 a collar 5 which is in turn attached to the p sulating material, such as glass, by doubling the edge of the strip over the base and pressing it into the glass, when softened by heat, as indicated, at 9 or in any other suitable manner. I

Ordinarily it is suflicient to fasten the collar firmly enough to prevent side play, by tightening the bolts 7, but if desired, side play can be still further prevented byproviding the farther end of the filament spider, with a projection 10, extending to the tip of the lamp. The stem 3 is in some cases provided with a restricted portion, or recess,

as shown in Fig. 3 in which the collar 4 is fastened. In order to give a support of'this kind greater resiliency which is particularly usefu when fragile filaments are supported, the strips 6 are made of suitable resilient material in the form of springs as shown in Fig. 4. It is obvious that by thismeans of support, the flattened portion of the stem is entirely freed from the weight of the framework carrying the filament, and the latter is at the same time more resistant to' in member, comprising a collar encircling stud-supporting member and connected to said framework.

2. In an incandescent lamp, the combination of an envelop, a stem attached'to the base of said envelop, a framework carrying a filament within said envelop and a support for said framework comprising a collar surrounding said stem.

3. In an incandescent lamp, the combinaconductor, a collar surroundlng said sup- ,tion of an envelop, an inwardly projecting porting member and resilient means connect- 10- stem, a/filament; spider and "means connecting said collar to-said framework. ing said spider to said stem comprising a In witness whereof, I have hereunto set collar clasping said stem and supports exmylmnd this 19th day of April 1910.

tending from said collar to said spider. JAKOB REGENSTREIF 4. The combination of a container, at supporting member extending into the interior. thereof, a framework carryin an electrical Witnesses WOLDEMAR HAUPT, J ULIUB RUMLAND. 

